公开(公告)号：WO1996022422A1

公开(公告)日：1996-07-25

申请号：PCT/US1995016427

申请日：1995-12-20

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  SUTTON, Graham, W.

IPC: D21H23/74

CPC classification number: D21H23/74

Abstract: A coating apparatus (10) is disclosed for coating a web of paper (W). The apparatus (10) includes a first and second roll (12, 14) having axes of rotation (16, 18) disposed parallel relative to each other such that the rolls (12, 14) define therebetween a first nip (N1) for the selective passage therethrough of the web (W). A backing roll (20) has a peripheral suface (22) which cooperates with the first roll (12) for defining therebetween a second nip (N2). A coater (24) cooperates with the peripheral surface (22) for applying coating material to the web (W) when the web(W) is guided by the surface (22) and disposed between the surface (22) and the coater (24). A further backing roll (26) has a further peripheral surface (28) which cooperates with the second roll (14) for defining therebetween a third nip (N3). A further coater (30) cooperates with the further surface (28) for applying coating material to the web (W) when the web (W) is guided by the further surface (28) and disposed between the further surface (28) and the further coater (30). The arrangement is such that the web (W) in a first coating mode is guided by the surface (22) for coating a first side (32) of the web (W), and in a second mode, the web (W) is guided by the further surface (28) for coating a second side (34) of the web (W), and in a third mode, the web (W) is guided through the first nip (N1) for simultaneously coating the first and second sides (32, 34) of the web (W).

Abstract translation: 公开了一种涂布纸（W）的涂布设备（10）。 设备（10）包括具有相对于彼此平行设置的旋转轴线（16,18）的第一和第二辊（12,14），使得辊（12,14）之间在其间限定了第一辊隙（N1），用于 纤维网（W）的选择性通过。 背衬辊（20）具有与第一辊（12）配合的外围表面（22），用于在其间限定第二辊隙（N2）。 当纸幅（W）由表面（22）引导并且设置在表面（22）和涂布机（24）之间时，涂布机（24）与周边表面（22）配合以将涂料施加到卷材（W） ）。 另一背衬辊（26）具有与第二辊（14）配合的另一个外周表面（28），用于在其间限定第三辊隙（N3）。 另外的涂布机（30）与另外的表面（28）协作，当纸幅（W）由另外的表面（28）引导并且设置在另一表面（28）和 进一步涂布机（30）。 该布置使得以第一涂布模式的卷筒纸（W）由用于涂布纸幅（W）的第一侧面（32）的表面（22）引导，并且在第二模式中，幅材（W）为 在另一表面（28）的引导下，用于涂覆幅材（W）的第二侧面（34），并且在第三模式中，幅材（W）被引导通过第一压区（N1），以同时涂覆第一和第二 腹板（W）的侧面（32,34）。